Reel supporting mechanism for use in printing machines



Jun 11, 1935.' c. G. QUICK El AL REEL SUPPORTING MECHANISM FOR USE INPRINTING MACHINES Filed Feb. 25, 1933 3 Sheets-Sheet 1 mvz N'ro Rs.

l TU-E 3 Sheets-Sheet 2 INVENTORS. W4 5% MW 26w ATTY.

J1me 1935- c. G. QUICK ET A].

REEL SUPPORTING MECHANISM FOR USE IN PRINTING MACHINES Filed Feb. 25,1933 w M m m\ P JM M T T? L June 11, 1935. c, Gk QUICK r AL 2,004,493

REEL SUPPORTING MECHANISM FOR USE IN PRINTING MACHINES Filed Feb. 25,1953 3 Sheets-Sheet 3 Patented June 11, 1935 REEL SUPPORTING MECHANISMFOR USE IN PRINTING'MACHINES Cecil George Quick, Donald Arthur Ball, and

Thomas Richard Bennett, London, England, assignors to Irving TrustCompany, permanent trustee for R. Hoe & Co., Inc., New York, N. Y., e

a corporation ofNew York Application February 25, 1933, SerialNo.658,542 In Great Britain February 29,1932

Claims. o1. 242-68) This invention relates to improvements in rollsupporting mechanism for use in supporting spindle-less rolls from whichwebs are drawn to printing machines. v

Themain object of the present invention is to provide an arrangement inwhich economy in space, both horizontally and vertically canbeeffectedintrucking rolls to a support in a printing machine.

The-preferred embodiment of the invention is illustrated in theaccompanying'drawings, where- ;Figure 1 is an elevational view of theroll supporting mechanism as applied to a printing machine; w

Figure 2 is .a side elevational view of Figure 1; Figure-3 isan'enlarged detail view showing a mounting for one end of an operatingshaft and a clutch member cooperating therewith shown in section; and

- Figure lis an end elevational view of Figure 3. QReferring to thedrawings there is provided on .each side of front andrear verticalstandardsrl, 12 (which may form part of the frame of theprintinglmachine) a'pair of'arms 3, l. (hereinafter "referredto .as the.front? and rear arms respectively), each arm-rbeing provided in amanner whichis well knowmwith plugs adapted toenter the central-or corediameter of the spindle-'less rolls. "As .each pair of arms isidenticaland is associated with identicalmechanism, reference will, in thedescription hereafter, be directed to one of the pairs of arms only. Thefront arm 3 is movable from'the positionshown fcr'the mechanism attheright hand side of thesupport VI to a position (indicated for themechanism attheleft'handside of Figure 2) such that the roll can betrucked into position on the plug-on Ithe rear-arm 4 whereafter the arm3 can be lowered. andits plug caused to enter the'sroll. 'i In order toeffect this, thearms 3 and .4 are mounted upon a traverse shaft .5'which is mounteddn journalsB located near the base of the:standards .l,2 the rear arm 4 being secured against relative angula-r movement withrespect to the :shaft while the front arm 3 is freely mountedon theshaft 5 and'is connected to-the shaft through a lost-motiondevice whichwhile enablingthearm 13 to move angularly with respect to the-shaft andto be swung up to permit trucking to .be effected also enables the shaft.5 to'move both arms simultaneously toraise the roll clear of the truckvery slightly. The lostmotion =.devicecomprises a .third arm "I whichiscarried on the shaft so as to be held against relative angular movementwithrespect 'there. to, and a link 8 which is pivotally connected'at 9to the front arm 3 and is provided at its upper end with a slot I0 intowhich extends apin l l'onthe third arm 1, the slot having-ashortportionH3" at right angles to the-principaljp rt so that the arm "'1 is latchedto the 'link .-8 in a definite position; thus, while the :front arm .3can ,be moved upwardly with respect tothethird arm I ,(and. hence withregard to the shaft 5 and the rear arm 4). when the third arm and consequentlythe rear arm 4 are rocked by movement of the shaft '5, the link 8transmits the similar movementito the front arm 3. Theraisingof-the arms3, 4 may be effected by a Windlass arrangement' comprising a cable 12which is wrapped around a two diameter drum -l3-secured to an'operatingshaft M, and a loop in the cable is passed over a pulley 15 mounted onanarm 16 secured to the shaft 5: the arrangement thus providesadifferential pulley block reduction gear which obviously could bereplaced by any ,other'type of gear for providing a mechanical advantageof :an operating member over the shaft 5. Such a modifiedkind of gearcould comprise agear wheel ireductiongear interposed between acnediameter cable tpulley and an operating shaft therefor. V

The shaft I4 is provided Witha handle I! located at the front of themachine and in order to ensure that damage shall notgbe done to themechanism by an operator allowingthe arms to move downwardly undertheirown weight and that of the roll without restraint,. the arrangementfor effecting lowering of the'arms'is such that theoperating handlehasto be moved continuously so long as movement is required and that if theoperating handle ceasesto be operated, the arms will come to restsubstantially simultaneously. This iseffected by connecting the handleI! to the shaft .14 through a lostmotion arrangement comprising'a 5lug.[8'01'1 a sleeve is to which the-handle l.'! is connected and a slot 20formed in a disc ZO'secured to the-shaft M. The sleeve I9 is internallyscrew threaded and engages a screw thread 2] formed on a sleeve 22 whichis secured to the shaft l4 :and this sleeve 22 carries one part 23 of afriction disc clutchwhose other part 24 is mountedon the sleeve 22, andabuts against theendof the sleeve N, a slight axial movement ofthesleeve Hand of the part 24 being permitted on the sleeve 22. The'part.24 of the clutch is-providedon its periphery with ratchet teeth 25engaged-by apawl 26 pivotally mounted at \Z'Lon the standard .-l-.

The hand of the screw thread is such that the weight of the arms 34 andtheir associated parts and of the roll, causes the sleeve Hi to pressthe part 24 against the part 23 of the clutch. As the part 24 is held bythe pawl 26 against rotation in a direction'corresponding to downwardmovement of the arms, it follows that through the clutch 23, 24, thepawl 26 holds the arms in the position to which they are-moved. i a

If now it is desired to lower the 'arm'sfthe handle I1 is rotated insuch a direction as to cause the sleeve [9 to be moved 'byth'e screwthread 2| away from the part 24 of the clutch, this rota tion of thesleeve 19 with respect to the sleeve 22 being permitted by thelost-motion arrangement I8, 202' The clutch is now disconnected and thearms 3, 4 are freed from restraint by the i pawl and can lower undertheir weight and will continue to do so so long as the handle is movedto maintain the sleeve l9 in that position relatively'to the sleeve'22to which it is moved by the initial mo'vement'of the handle. As soon,however, as motion of the handle ceases, the sleeve 22 will regain thelost-motion (i. e. will move relatively'to the sleeve l9) and thus thescrew thread will act in the opposite direction and force the part 24 ofthe clutch against the part 23 and thereby bring the arms'to rest. It

will of course be apparent that when the handle H is moved'to raisethe'arms, the pawl 26 will act as a detent to sustain the weight of thearms. The'han'dle l! is preferably formedflseparately fromthe sleeve I9;and to provide forthe drive connection, the handle is formed with lugs28 which can enter recesses 29 formed in a flange I9 on the sleeve IS,the handle being bored to fit over the sleeve.

Tension of the web 30 passing fromthe roll is controlled by bands 3|secured at theirends to frames32 which are pivotally mounted on a shaft33 journalled in the standards L2. The bands are preferably connectedto'the frames at one end (or at'both ends) through levers 34 which areloaded =by'springs 35 which placethe bands under an adjustable initialtension and preferably also the 'frames'are weighted by adjustableweights 36 mounted on arms 36' fast on the shaft 33.

It will be understood that when the arrangement described above isduplicated, one roll would be the running roll (i. e. the one in use)while the other would be the: spare roll and could be trucked intoposition in readiness to become the running roll in its turn while theexisting running roll is feeding. i The plugs on the front and rear armsare arranged to be moved axially into and out of position in any usualway as by means of gearing indicated at 31 and moreover to enable rollsof different widths to be supported, the front, rear and third arms areadjustable longitudinally of the supporting shaft and are provided withclamping boltsto enable the arms to be clamped in any desired position.

In order to'provide for adjustment of side lay of a roll'supported inthe arms, the shafts 5 are slidably mounted in the bearings at one endand the other ends of the shafts are interconnected by a yoke piece -38which is adjustable by a screw threaded member 39having an operatinghand wheel 40.

It will be seen that with the arrangement according to theinve'ntion,considerable economy in space can be effected since the rolls "can betrucked in in a space equal only to that occupied by the roll when inuse, i. e. space is not required to enable the roll to be trucked in atthe side of its normal running position, the roll thereafter being movedlaterally with respect to its length into normal or running position!Moreover, the whole operation'of web replenishing can be effected fromone side of the machine, a feature which is of importance both from thequestion of time saving and also of installation where this'is effectedclosely adjacent a wall.

What we claim is:-

1. In web roll supporting mechanism, the combinationof a pair ofpivotally mounted arms adapted conjointly to support a web roll betweenthem, a member common to the two arms for effecting simultaneous angularmovement thereof, and means to permit one arm to be rockedindependently'of the other arm and into position to permit a roll to bemoved endwise into position to be supported by the arms I 2. A web rollsupporting mechanism for use with a printing machine, comprising apairof members which are adapted conjointly to support a web rollbetween them, means to effect a simultaneous'rocking movement of the twosupport members, and means to permit one support member to be rockedindependently of the other, whereby a roll. may be movedendwise into amounting position.

3. A web roll. supporting mechanism for use with a printing machine,comprising .a pair of members which are adapted conjointly to supporta'web' roll between them, means toefiect a simultaneous rocking movementof the two support members through an operating source, and a connectionto" release one'of said support 'members from the operating source,whereby s'aid latter support member maybe rocked independently of theother to permit a roll to beinserted endwise into a mounting position. 1

4. A- web roll supporting mechanism for use with a printing machine,comprising a pair of arms angularly movable about a common axis,operating means to rock said arms simultaneously, and a connectionwhereby one of said arms may be rocked independently to pcrmittheendwise in sertion of a web roll to a mounting position.

' v5. A web roll supporting mechanism'for use with a printing machine,comprising a pair of arms angularly movable about a common axis, a

third arm also movable'therewith, means to rock the third arm and one ofthe first mentioned arms also fixed to the shaft, and a link having alost motion slot therein joined to the freely movable arm which, link isadapted to connect the freely movable arm in a driving relation with thethird arm, to move the web roll supporting arms simultaneously and isadapted 'to be disconnected from its driving relation through its lostmotion slot to permit the freely movable arm to be moved freelyaroundthe shaft'toa position which will clear a web roll when movingsameendwise'to a loading position.

7. A web roll supporting mechanism for use with a printing machine,comprising a pair of web roll supporting arms mounted on a shaft, onearm being freely mounted and the other being fixed to the shaft,operating means for efiecting rocking of the shaft, and means connectingthe freely mounted arm to the shaft in such manner that when the shaftis rocked the latter arm can be moved simultaneously with the fixed armto effect raising of a roll supported between them, while the freelymounted arm can be swung to a position to enable a roll to be movedendwise into a position for mounting upon the arms.

8. A mechanism as defined in claim 7 in which the connecting means forthe freely mounted arm comprises an additional arm mounted on the shaftand is prevented from rocking with respect thereto, and a link which ispivotally connected to one of these arms and has a pin and slotconnection with the freely mounted arm.

9. A web rollsupporting mechanism for use with a printing machine,comprising a pair of pivotally mounted members which are adaptedconjointly to support a web roll between them, operating means to effecta simultaneous rocking movement of the arms to cause the raising of aroll supported by the arms, means for automatically holding the rollsupporting arms in the position moved to by the operating means, andmeans to permit one arm to be swung relatively to the other to permit aweb roll to be moved endwise into a mounting position.

10. A web roll supporting mechanism for use with a printing machine,comprising a pair of pivotally mounted arms which are adapted conjointlyto support a web roll between them, operating means to effect asimultaneous rocking movement of the arms including a rotatable memberhaving a clutch cooperating therewith to hold the roll supporting armsin the position moved to by the operating means, means to cause saidclutch to be released by the movement of the operating means when theoperating means is moved to rock the arms and to engage said clutch toprevent further movement of the arms when the operating means ceases tofunction.

11. A web roll supporting mechanism for use with a printing machine,comprising a pair of pivotally mounted members which are adaptedconjointly to support a web roll between them, operating means to effecta simultaneous rocking movement of the arms to cause the raising of aroll supported by the arms, including a shaft in operative connectionwith the arms and having an externally screw threaded member mountedthereon, an internally screw threaded sleeve connected to an operatingmember and engaging the externally screw threaded member, said sleevehaving a lost motion slot therein, and a plate fixed at one end thereof,asecond plate positioned over said sleeve and adapted to be held infrictional relation with the first named plate when the operating memberis not being moved, and a means for holding the second plate fixedagainst rotation in one direction.

12. A mechanism as defined in claim 11 in which the means for holdingthe second friction plate fixed against rotation in one directioncomprises a pawl mounted on the machine frame and engageable with aratchet toothed periphery on the second plate.

13. A web roll supporting mechanism for use with a printing machine,comprising a pair of pivotally mounted. arms which are adaptedconjointly to support a web roll between them, means to permit one armto be rocked independently of the other, operating means to efiect asimultaneous rocking movement of the arms to cause the raising of a rollsupported by the arms, and a reduction mechanism cooperating with saidoperating means.

14. A web roll supporting mechanism for use with a printing machine,comprising a pair of arms pivotally mounted on a shaft and adapted tosupport a web roll, means for rotating said shaft to rock the rollsupporting arms, one of said arms being movable independently of theshaft movement to provide for an endwise insertion of a web roll to amounting position, and means to laterally adjust said shaft.

15. A web roll supporting mechanism for use with a printing machine,comprising a pair. of pivotally mounted arms which are adapted toconjointly support a web roll between them, opcrating means to effect asimultaneous rocking movement of the arms to cause the raising of a rollsupported by the arms, and a reduction mechanism cooperating with saidoperating means including a cable mounted on a differential drum, amember movable with one roll supporting arm and having a pulley thereon,which pulley is engaged by the cable and is adapted to cooperate inraising or lowering the roll supporting arms when the differential drumis rotated.

CECIL GEORGE QUICK. DONALD ARTHUR BALL. THOMAS RICHARD BENNETT.

